Subtraction terms for one-loop amplitudes with one unresolved parton
High Energy Physics - Phenomenology
2009-11-10 v1
Abstract
Fully differential next-to-next-to-leading order calculations require a method to cancel infrared singularities. In a previous publication, I discussed the general setup for the subtraction method at NNLO. In this paper I give all subtraction terms for electron-positron annihilation associated with one-loop amplitudes with one unresolved parton. These subtraction terms are integrated within dimensional regularization over the unresolved one-particle phase space. The results can be used with all variants of dimensional regularization (conventional dimensional regularization, the 't Hooft-Veltman scheme and the four-dimensional scheme).
Cite
@article{arxiv.hep-ph/0306248,
title = {Subtraction terms for one-loop amplitudes with one unresolved parton},
author = {Stefan Weinzierl},
journal= {arXiv preprint arXiv:hep-ph/0306248},
year = {2009}
}
Comments
27 pages